@article{ZNSL_2018_473_a6,
     author = {E. V. Damaskinskiy and M. A. Sokolov},
     title = {On differential operators  for {Chebyshev} polynomials of several variables},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {99--109},
     publisher = {mathdoc},
     volume = {473},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2018_473_a6/}
}